A population of alligators lives in a wetland habitat.
Which of these describes a
density-dependent factor
that could affect

A. There's is a decrease in prey animals

B. Human introduce pollutants into the water of the ecosystem

C. A drought that lasts for several months

D. A Hurricane passed through the area

Match the types of competition to their descriptions.

In "the pig," what is the main effect that the piglet initially has on kibuka?

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.